Paper-bag machine.



No. 721,144. PATENTED FEB.,24,1903.,

\ w. BROWN & w. 0. COLLINS.

PAPER BAG MACHINE.

APPLICATION IILBD SEPT. 61 1901.

10 MODEL.

4 sums-5111:1111.

2 l v INVENTORS Mod; Y

THE NORRIS pzrzns cc. Puoruuflm. WASHINGTON. n. c.

No. 721.144. P ATENTED'PEB. 24, 19.03. W. BROWN & W. 0.00LLINS.

PAPER. BAG MACHINE. Abruonmx nun snr'r. e. .1901.

'4 sums-53mm a.

.10 MODEL.

- INVENTUR Altarrgeys.

TA: Nouns PETERS $0., rump-umqu WASHINGTON. an.

v PATENTBD'PBB. 24,1903. w, BROWN & w. 0. COLLINS.

PAPER BAG MACHINE. APYLIOATLOH FILED SEPT. 6, 1901.

I0 IODEL.

4 SHEETS-SHEET 3.

INVBNTORS WITNESSES THE NORRIS rmni'coTmo'ro-umod wwmorou. n, c.

.110. 121,144. r j PATENTED P EB.24,.1903.

w. BRowNgvw. 0. COLLINS.

PAPER BAG MACHINE. APPLICATION FILED arm. a, 1901.

I0 MODEL. 4 urns-sum 4.

Attorneys,

ms Noams Pawns (20., Puma-Lima, wAsnmcTom-mm shows the locking-handle.

UNIT-ED STATES PATENT OFFICE.

WALTER BROWN AND WARD O. COLLINS, OF ELKHART, INDIANA, ASSIGNORS TO THENATIONAL MANUFACTURING COMPANY, OF ELKHART, INDIANA, A CORPORATION OFINDIANA.

PAPER-BAG MACHINE.

SPECIFICATION forming part of Letters Patent No. 721,144, dated February24, 1903.

Application filed September 6, 1901- Serial No. 74,479. (No model.)

To all whom it may concern:

Be it known that we, WALTER BROWN and WARD 0. COLLINS, citizens of theUnited States, residing at Elkhart, in the county of Elkhart and Stateof Indiana, have invented certain new and useful Improvements inPaper-Bag Machines, of which the following is a specification, referencebeing had therein to the accompanying drawings.

The invention relates to paperbag machines, and has more particularreference to certain details of construction, as hereinafter describedand claimed.

In the drawings, Figure 1 is a longitudinal section through the machine.Fig. 2 isadiagram perspective view illustrating the arrangement of thedrive mechanism and connecting-gearing for the various parts of themachine. Fig. 3 is a sectional perspective View illustrating thefeed-rolls and a part of the cutoff. Fig. 4 is a detail view showing thetension device for the feed-roll. Fig. M

Fig. 5 is a crosssection in the plane of the paper-roll holder. Fig. 6is an end elevation illustrating the manner of engaging the roll ofpaper with its holding device. Fig. 6 illustrates the adjustable tensionfor the paper-holder. Fig. 7 is a section through the pasting device,showing the detachable paste-pan. Fig. 8 is a plan view thereof. Fig. 9is an elevation showing the pan locked in position. Fig. 10 shows amodified construction of bearing for the paper-roll holder. Fig. 11 is adiagram illustrating the drive mechanism for the tucker-rolls.

The machine is of that type in which a strip of paper is fed from a rollover suitable forming devices, which shape it into a tube, one edge ofthe strip being pasted and pressed upon the other edge to form the tube.The paper tube thus formed is severed into suitable lengths for forminga bag, each of which lengths is then folded over or tucked at one end toform the bag-bottom.

Some of the special features of the present invention are theconstruction of the paperroll holder and the means whereby the roll maybe readily placed in position in the frame and accurately adjusted inrelation to the frame.

Another feature consists in the peculiar construction of the pastingmechanism comprising a removable paste-pan and the means whereby saidpan may be secured in position and the amount of paste fed regulated.

A still further feature ofimprovement is the construction of feed-rollsand cutter-bar,- Which permit of readily removing a clog in the feed ofthe paper tube.

The invention therefore consists in the improvements above set forth, aswell as in certain details of construction specifically set forth in theclaims.

As shown in the drawings, 1 is the frame of the machine.

2 is a paper-holding shaft which is detach The cone 4 is longitudinallyslidable upon the shaft and has preferably a feathered engagementtherewith. It is adj ustably held in position by a lock-nut 6, which hasa threaded engagement with the shaft.

7 is a bearing for one end of the shaft, which has adownwardly-extending pin 8, engaging with the frame and forming aswivel. The opposite end of the shaft is provided with a drum 9, whichengages with a clamping-bearing 10 upon the frame. This clamping-bearingcomprises two blocks 11 and 12, engaging with a recess in the frame andupon opposite sides of the drum 9. 13 is a screw for adjusting one ofsaid blocks, so as to; alter the pressure upon the drum andincrease ordiminish the friction.

14 is a screw-threaded shank engaging with a bearing 7 and havingswiveled at its outer end the yoke 15, which engages with a groove 16 atthe end of the shaft 2. 1 This yoke has a downwardly-extending arm whichserves to hold the yoke in upright position by its gravity. a

17 is a crank-arm secured to the end of the shank 14.

With the construction as above described ICO to engage the paper-rollwith the shaft 2 the cone 3 is first slid off from said shaft and thelatter inserted through the central aperture in the paper-roll. The coneis then replaced and secured in position by tightening the screws 5,after which the cone may be moved inward by adjusting the nut 5 so as tocenter and firmly attach the roll to the shaft. One end of the shaft isthen engaged with the bearing 7, which being swiveled in the frame maybe turned to permit of engaging the shaft therewith, while the oppositeend thereof is resting upon the floor. The opposite end of the shaft maythen be lifted to engage the drum 9 with the bearing 10. Thisconstruction reduces the labor of placing the roll in position, as it isunnecessary for the workman to lift the roll bodily, but only one end ofthe shaft at a time, and thus one workman can perform the work whichusually requires two. When the shaft is in engagement with its bearing,the paper-roll may be centered in relation to the frame by turning thecrank 17, which will adjust the shank 14 inward or outward and willcorrespondingly move the shaft 2. In order that this adjustment may notdisengage the drum 9 from the clampingbearing 10, the length of saiddrum is greater than the length of the hearing.

In Fig. a modification is shown in which in place of the swivel-bearing7 a stationary bearing 7 is employed, the latter being provided with theinclines 7 and 7 upon opposite sides of the center shaft-bearing 7 Withthis construction the end of the shaft may be placed upon the bearingwhile the roll is resting upon the floor, and in lifting the oppositeend of the shaft and carrying it into engagement with the oppositebearing the inclines 7 and 7 will guide the shaft into the centralbearing 7 The paper strip from the roll on the shaft 2 is led overidler-rolls 18, journaled in an upward extension of the frame, andthence to thepaper-foldingform 19. This,asisusual,is suspended from anoverhanging bracket 20, secured to the frame, so that the paper stripmay be wrapped around the form to make the tube. At the end of the form19 is arranged a pair of feed rolls 21 and 22, respectively above andbelow the paper tube. These rolls are driven by the following mechanism:

23 is a drive-shaft extending transversely of the frame and connected bya gear-train 24 with a second transverse shaft 25, journaled in theupper part of the frame. This shaft has secured thereto a hand-Wheel 26.One of the intermediate gears 27 of the train 24 is secured to atransverse shaft 28, which at its opposite end has a change-gear 29,detaehably secured thereto. This gear meshes with an intermediate gear30, which in turn meshes with a gear 31 upon the shaft of the roll 22.32 is a gear on the opposite end of the roll-shaft 22, which meshes witha corresponding gear 33 on the roll-shaft 21.

In order to facilitate the engagement of the paper with the feed, aswell as to easily remove any clogging when necessary, the upperfeed-roll 21 is journaled in movable bearings, which permit of its beingswung out of contact with the roll 22. As shown in the drawings, 34represents bearings for the shaft of the roll 21, which bearings are inthe form of rock-arms pivotally supported at 35 to lugs upon the frame.In their normal position these rock-arms are arranged substantiallyhorizontal and hold the roll 21 in contact with the lower roll 22. Therequisite pressure is exerted on the roll 21 by a spring 36, which issleeved upon the rotary shank 37, having a crank-handle 38, and ishoused within the frame 39, secured to the main frame 1. The frame 39forms a bearing for the upper end of the spring 36, whilethe lower endthereof bears against the collar 40 on the shank 37.

41 is a collar upon the shank 37 above the frame 39, which is adapted toengage with a lug 42 on the rock-arm 34. The collar 41 is cut away onone side to permit of disengagement from the lug 42 and has an adjacentcam 43 for engaging the collar with said lug.

With the construction just described the tension of the spring 36 willexert a downward pull on the shank 37 and through the engagement of thecollar 41 with the lug 42 will transmit the tension of said spring tothe bearings 34 of the roll 21, thereby pressing said roll downwardagainst the corresponding roll 22. When it is desired to throw back theroll 21, the arm 38 is turned to register the aperture in the collar 41with the lug 42, which will permit of the disengagement of said lug andthe turning back of the roll in the rock-arm bearings 34.

The cut-01f mechanism is arranged in adjacence to the rolls 21 and 22and is of the following construction:

44 is a bar extending transversely of the frame which is arranged inrear-"L. e., in the direction of the feedof the rolls 21 and 22. Thisbar 44 carries the usual notched cutterblade 45, adapted to sever thepaper tube when the latter is forced against said plate by the striker.The striker 46 is formed by a blade having a shank slidingly secured inthe bi pivotal bearing 47 ,secured to the bracket 48 upon the frame. Theopposite end of the blade 47 is secured to the crank-pin 49 upon thedisk crank 50, while the latter is secured to the shaft 51, extendinglongitudinally of the frame, at one side thereof. has a changeless driveconnection with the drive-shaft, comprising the miter-gears 52, whichconnect the shaft 41 with the transverse shaft 25. Thus the motion ofthe driveshaft 23 is imparted through the gear-train 24 to the shaft 25and through the miter-gears 52 to the shaft 51. This in turn rotates thecrank 50 and crank-pin 49, which rotates the rear end of thestriker-blade 60. As this blade is slidingly secured in the pivotalhearing 47, the result will be that in each revolu- The shaft 51 ICCtion of the crank 50 the blade will strike up wardly across the pathofthe paper tube in adjacence to the cutter-blade 45 and is then withdrawnout of the path of the tube to be returned. In order that the bar maynot interfere with access to the form for the paper tube, said bar ispreferably hinged to the frame, so that it may at any time be turned upin a position to clear the .top of .the machine. This also facilitatesthe removal of the paper upon the form in case of clogging.

The tucking or bottom-forming mechanism is arranged in rear of thefeed-rolls and cutofi and comprises, essentially, a pair oftucking-rolls 53 and 54 and a reciprocating tuckerplate 55, the latterbeing adapted to form a fold near the bottom edge of the paper strip andpress it into engagement with' the tucking-rolls. The paste-dasher 56 isalso provided for depositing paste in the fold, so that when pressedtogether by the tucking-rolls the bottom of the bag will be completed.The tucking-rolls 53 and 54 receive their motion from the feed-rolls 21and 22 through the medium of the gear-train 57, which connects thegear-wheel 32 on the roll-shaft 21 with a gearwheel 58 upon thetucker-roll shaft 53. The roll 54 derives its movement from a gearwheel59 upon its shaft,which meshes with the gear-Wheel 38. The gear-wheels32, 38, and 59 are proportional to the diameters of the rolls 21, 53,and 54, so that said rolls will run at the same peripheral speed.squeezing out the-paste deposited in the fold or tuck which forms thebottom of the bag, the roll 54 is provided with a longitudinal groove60', which isfso arranged as to register with the edge of the fold whenpassing between the rolls 53 and 54. This necessitates that the movementof the 'ro1l54 be so timed as to always register the groove 60 with thefold in the bag, and as thelength of bag varies with each change of thechange-gear 29 the roll 54 must be correspondingly changed. This changeis simplified by making the gear 59 upon the change-roll 54 the same aschangegear 29 or an exact fraction of the latter. Thus if the length ofthe bag is considerable the gear-wheel 59 may be one-half the pitchdiameter of the gear-wheel 29 and the circumference of the roll 54correspondingly one-half the length of the bag, so that two revolutionswill be made by the roll 54 in feeding through each bag length. the sizeof the roll 54 and at the same time times its rotation to register thegroove 60 with the fold. To permit of changing the roll 54, it isjournaled in bearings 61, which are removably secured in the side framesof the machine by detachable caps 62. Springs .3 are also arranged tobear upon the bearings 61 to yieldingly hold the roll 54 in contact withthe roll 53. The tucker-plate 55 is secured to the rock-frame 64, whichis secured to a rock-shaft 65, extending transversely of the frame.

In order to avoid This reduces 66 is a paste-receptacle which isembraced bya rock-frame 64 and is of the following construction.

67 is a framework secured to the frame 1 and provided at its outer endwith bearings 68 for the shaft of the paste-roll 69.

70 is a detachable paste-pan comprising sides, bottom, and rear end, theforward end being formed by the paste-roll 69. To permit of engaging ordisengaging this pan, its sides 71 are forked to embrace the roll-shaftand to bear against the opposite ends of the roll. These ends are alsoprovided with segmental bearings for overlapping the periphery of theroll and forming the paste-tight joint therewith. The pan may then beslid along ways 7.2 upon the frame 67 until the forked sides embrace theroll-shaft, after which the rear end of the pan may be elevated andlocked in this position by clamping-screws 73 in the frame 67, whichengage with slotted flanges 74 on the paste-pan. The feeding of thepaste is regulated by a sliding block 75, arranged at the forward end ofthe bottom of the pan, which block is adapted to bear against thepaste-roll and to be adjusted away from the latter by a screw-threadedrod 76, having operating thumb-nuts 77 at'the rear end of the pan. Thisconstruction permits of removing the pan for the purposeof cleansing andfor readily replacing it when needed.

The various groups of mechanism constituting the machine beingconstructed and arranged as above described, a brief description of thecomplete operation is as follows: The paper-roll is first mounted uponthe shaft 2 in the manner previously described, and said shaft isengaged with its bearings and adjusted in position to center the roll,as here: inbefore set .forth. The end of the paper strip is then drawnover the roll 18 and around the tube-form l9 and the end insertedbetween the rolls 2L and 22. To permit of thus inserting the paperbetween the rolls, the roll 21 is thrown back by turning back therock-arm bearings 34, as above described. When the paper is in position,the roll 21 may be thrown back and locked in position by turning thecrank-handle 38 to engage the collar 41 with the log 42 on the bearing34. This will place a spring tension upon the roll 21, holding itagainst the paper strip on the roll 22. Motion may now be imparted tothe drive-shaft 23, whichthrough the gear-train 24 will cause therotation of the shaft 25 and hand-wheel 26. Each revolution of thehandwheel will cause a complete revolution of the crank-disk 50 and thestriker 46, actuated thereby. Thus the bag length is severed with eachrevolution of the hand-wheel regardless of the length of bag which maybe severed.

IIO

The tucker and paste-dasher being actuated by a direct connection withthe drive-shaft will also make a complete revolution with,

of the length of bag. The length of bag is determined by the speed ofthe feed and tucking rolls, and as the latter all run at the samerelative speed they may be changed by the adjustment of a singlechange-gear 30. Thus it will be seen that the machine may be veryreadily adjusted for forming bags of diflferent length. It is necessary,however, in each adjustment to also change the tucking-roll 54. This maybe readily done by removing the cap 62, which will permit moving thebearing 61 and engaging another roll therewith. After the paper tube haspassed between the feed-rolls it is fed forward until the tucker-platestrikes the end of the tube and forms the fold which is engaged with thetucker-rolls. Simultaneous with this operation of the tucker thestriker-blade is turned upward across the path of the paper and pressesthe latter against the cutter-plate, thereby severing the tube. As theprecise construction of the tucking mechanism forms no part of thepresent invention, a further description thereof is deemed to beunnecessary.

What we claim as our invention is- 1. In a paper-bag machine, thecombination with a stationary frame and a rotary paste-roll j ournaledtherein, of an open-ended paste-pan, a guideway upon said frame alongwhich said pan is adapted to be moved while in a horizontal position toembrace said roll, said way permitting said pan to be tilted upward whenin engagement with said shaft to feed the paste against said roll, andmeans for locking said pan in its tilted position.

2. In a paper-bag machine, the combination with a stationary frame and arotary paste-roll journaled therein, of an open-ended paste-pan havingsides forming a paste-tight joint with the end of said roll andprojecting beyond the bottom of said pan, said projecting ends beingbifurcated to embrace the rollshaft, a guideway on said frame alongwhich said pan is adapted to be moved while in a horizontal positioninto engagement with said roll, said way permitting of tilting said panafter said engagement to feed the paste against said roll, and means forlocking said pan in its tilted position.

3. In a paper-bag machine, the combination with a frame and a rotatorypaste-roll journaled therein, of a removable paste-pan havingan openend, and adjacent sides adapted to embrace the opposite ends of saidroll, cooperating guides on said frame and pan for holding the latter ina position to retain the paste therein while being engaged or disengagedfrom said roll, said guides disengaging after the pan is in engagementwith the roll to permit of elevating the outer end of said pan, andmeans for locking the pan thus elevated to said frame.

4. In a paper-bag machine, the combination with the'frame, a detachablepaper-rollholding shaft and means for securing the paper-roll thereon,of a swivel-bearing for one end of said shaft, a shank having a threadedengagement with said bearing and projecting laterally therefrom, a yokeswiveled upon said shank, andadapted to engage with an annular bearingin said shaft, a gravity-arm for holding said yoke in upright positionand a bearing for the opposite end of said shaft for the purposedescribed.

5. In a paper-bag machine, the combination with the frame, a detachablepaper-rollholding shaft and means for securing the roll therein, of abearing for one end of said shaft, means carried by said bearing foradjusting the shaft longitudinally therein, a drum upon the opposite endof said shaft, a two-part clamping-bearing engaging said drum,and an adjusting-screw for tightening said bearing, said drum being of greaterlengththan the bearing to permit of longitudinal adjustment thereon.

In testimony whereof we .affix our signatures in presence of twowitnesses.

WALTER BROWN. WARD O. COLLINS.

Witnesses:

AGNES C. MYERS, BERYL M. TOUSLEY.

